diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b86d665
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+build
+.*.swp
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb01281..cdfa998 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -83,19 +83,8 @@ set(GRC_BLOCKS_DIR      ${GR_PKG_DATA_DIR}/grc/blocks)
 ########################################################################
 # Find gnuradio build dependencies
 ########################################################################
-find_package(Gruel)
-find_package(GnuradioCore)
-#find_package(GnuradioAudio)
-#find_package(LibUSB)
-
-if(NOT GRUEL_FOUND)
-    message(FATAL_ERROR "Gruel required to compile afsk")
-endif()
-
-if(NOT GNURADIO_CORE_FOUND)
-    message(FATAL_ERROR "GnuRadio Core required to compile afsk")
-endif()
-
+set(GR_REQUIRED_COMPONENTS RUNTIME)
+find_package(Gnuradio "3.7.2" REQUIRED)
 
 ########################################################################
 # Setup the include and linker paths
@@ -105,17 +94,13 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/lib/multimon/
     ${CMAKE_SOURCE_DIR}/lib
     ${Boost_INCLUDE_DIRS}
-    ${GRUEL_INCLUDE_DIRS}
-    ${GNURADIO_CORE_INCLUDE_DIRS}
-#    ${LIBUSB_INCLUDE_DIR}
+    ${GNURADIO_ALL_INCLUDE_DIRS}
     ${LIBRTLSDR_INCLUDE_DIR}
 )
 
 link_directories(
     ${Boost_LIBRARY_DIRS}
-    ${GRUEL_LIBRARY_DIRS}
-    ${GNURADIO_CORE_LIBRARY_DIRS}
-#    ${LIBUSB_LIBRARY_DIRS}
+    ${GNURADIO_RUNTIME_LIBRARY_DIRS}
     ${LIBRTLSDR_LIBRARIES}
 )
 
@@ -144,5 +129,5 @@ add_subdirectory(lib)
 add_subdirectory(swig)
 add_subdirectory(python)
 add_subdirectory(grc)
-#add_subdirectory(apps)
+add_subdirectory(examples)
 #add_subdirectory(docs)
diff --git a/cmake/Modules/FindGnuradioAudio.cmake b/cmake/Modules/FindGnuradioAudio.cmake
deleted file mode 100644
index 63207f5..0000000
--- a/cmake/Modules/FindGnuradioAudio.cmake
+++ /dev/null
@@ -1,26 +0,0 @@
-INCLUDE(FindPkgConfig)
-PKG_CHECK_MODULES(PC_GNURADIO_AUDIO gnuradio-audio)
-
-FIND_PATH(
-    GNURADIO_AUDIO_INCLUDE_DIRS
-    NAMES gr_audio_api.h
-    HINTS $ENV{GNURADIO_AUDIO_DIR}/include/gnuradio
-        ${PC_GNURADIO_AUDIO_INCLUDEDIR}
-    PATHS /usr/local/include/gnuradio
-          /usr/include/gnuradio
-)
-
-FIND_LIBRARY(
-    GNURADIO_AUDIO_LIBRARIES
-    NAMES gnuradio-audio
-    HINTS $ENV{GNURADIO_AUDIO_DIR}/lib
-        ${PC_GNURADIO_AUDIO_LIBDIR}
-    PATHS /usr/local/lib
-          /usr/local/lib64
-          /usr/lib
-          /usr/lib64
-)
-
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GNURADIO_AUDIO DEFAULT_MSG GNURADIO_AUDIO_LIBRARIES GNURADIO_AUDIO_INCLUDE_DIRS)
-MARK_AS_ADVANCED(GNURADIO_AUDIO_LIBRARIES GNURADIO_AUDIO_INCLUDE_DIRS)
diff --git a/cmake/Modules/FindGnuradioCore.cmake b/cmake/Modules/FindGnuradioCore.cmake
deleted file mode 100644
index 3773588..0000000
--- a/cmake/Modules/FindGnuradioCore.cmake
+++ /dev/null
@@ -1,26 +0,0 @@
-INCLUDE(FindPkgConfig)
-PKG_CHECK_MODULES(PC_GNURADIO_CORE gnuradio-core)
-
-FIND_PATH(
-    GNURADIO_CORE_INCLUDE_DIRS
-    NAMES gr_random.h
-    HINTS $ENV{GNURADIO_CORE_DIR}/include/gnuradio
-        ${PC_GNURADIO_CORE_INCLUDEDIR}
-    PATHS /usr/local/include/gnuradio
-          /usr/include/gnuradio
-)
-
-FIND_LIBRARY(
-    GNURADIO_CORE_LIBRARIES
-    NAMES gnuradio-core
-    HINTS $ENV{GNURADIO_CORE_DIR}/lib
-        ${PC_GNURADIO_CORE_LIBDIR}
-    PATHS /usr/local/lib
-          /usr/local/lib64
-          /usr/lib
-          /usr/lib64
-)
-
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GNURADIO_CORE DEFAULT_MSG GNURADIO_CORE_LIBRARIES GNURADIO_CORE_INCLUDE_DIRS)
-MARK_AS_ADVANCED(GNURADIO_CORE_LIBRARIES GNURADIO_CORE_INCLUDE_DIRS)
diff --git a/cmake/Modules/FindGnuradioRuntime.cmake b/cmake/Modules/FindGnuradioRuntime.cmake
new file mode 100644
index 0000000..afed684
--- /dev/null
+++ b/cmake/Modules/FindGnuradioRuntime.cmake
@@ -0,0 +1,36 @@
+INCLUDE(FindPkgConfig)
+PKG_CHECK_MODULES(PC_GNURADIO_RUNTIME gnuradio-runtime)
+
+if(PC_GNURADIO_RUNTIME_FOUND)
+  # look for include files
+  FIND_PATH(
+    GNURADIO_RUNTIME_INCLUDE_DIRS
+    NAMES gnuradio/top_block.h
+    HINTS $ENV{GNURADIO_RUNTIME_DIR}/include
+          ${PC_GNURADIO_RUNTIME_INCLUDE_DIRS}
+          ${CMAKE_INSTALL_PREFIX}/include
+    PATHS /usr/local/include
+          /usr/include
+    )
+
+  # look for libs
+  FIND_LIBRARY(
+    GNURADIO_RUNTIME_LIBRARIES
+    NAMES gnuradio-runtime
+    HINTS $ENV{GNURADIO_RUNTIME_DIR}/lib
+          ${PC_GNURADIO_RUNTIME_LIBDIR}
+          ${CMAKE_INSTALL_PREFIX}/lib/
+          ${CMAKE_INSTALL_PREFIX}/lib64/
+    PATHS /usr/local/lib
+          /usr/local/lib64
+          /usr/lib
+          /usr/lib64
+    )
+
+  set(GNURADIO_RUNTIME_FOUND ${PC_GNURADIO_RUNTIME_FOUND})
+endif(PC_GNURADIO_RUNTIME_FOUND)
+
+INCLUDE(FindPackageHandleStandardArgs)
+# do not check GNURADIO_RUNTIME_INCLUDE_DIRS, is not set when default include path us used.
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GNURADIO_RUNTIME DEFAULT_MSG GNURADIO_RUNTIME_LIBRARIES)
+MARK_AS_ADVANCED(GNURADIO_RUNTIME_LIBRARIES GNURADIO_RUNTIME_INCLUDE_DIRS)
diff --git a/cmake/Modules/FindGruel.cmake b/cmake/Modules/FindGruel.cmake
deleted file mode 100644
index 58dff70..0000000
--- a/cmake/Modules/FindGruel.cmake
+++ /dev/null
@@ -1,26 +0,0 @@
-INCLUDE(FindPkgConfig)
-PKG_CHECK_MODULES(PC_GRUEL gruel)
-
-FIND_PATH(
-    GRUEL_INCLUDE_DIRS
-    NAMES gruel/attributes.h
-    HINTS $ENV{GRUEL_DIR}/include
-        ${PC_GRUEL_INCLUDEDIR}
-    PATHS /usr/local/include
-          /usr/include
-)
-
-FIND_LIBRARY(
-    GRUEL_LIBRARIES
-    NAMES gruel
-    HINTS $ENV{GRUEL_DIR}/lib
-        ${PC_GRUEL_LIBDIR}
-    PATHS /usr/local/lib
-          /usr/local/lib64
-          /usr/lib
-          /usr/lib64
-)
-
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GRUEL DEFAULT_MSG GRUEL_LIBRARIES GRUEL_INCLUDE_DIRS)
-MARK_AS_ADVANCED(GRUEL_LIBRARIES GRUEL_INCLUDE_DIRS)
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
new file mode 100644
index 0000000..c5219bb
--- /dev/null
+++ b/examples/CMakeLists.txt
@@ -0,0 +1,23 @@
+# Copyright 2011 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+install(FILES
+    aprs_decode_file.grc
+    DESTINATION share/gnuradio/examples/multimon
+)
diff --git a/examples/aprs_decode_file.grc b/examples/aprs_decode_file.grc
index 03607e7..1af440b 100644
--- a/examples/aprs_decode_file.grc
+++ b/examples/aprs_decode_file.grc
@@ -167,7 +167,7 @@
     </param>
   </block>
   <block>
-    <key>gr_null_sink</key>
+    <key>blocks_null_sink</key>
     <param>
       <key>id</key>
       <value>gr_null_sink_1</value>
@@ -194,7 +194,7 @@
     </param>
   </block>
   <block>
-    <key>gr_file_source</key>
+    <key>blocks_file_source</key>
     <param>
       <key>id</key>
       <value>gr_file_source_0</value>
@@ -308,7 +308,7 @@
     </param>
   </block>
   <block>
-    <key>gr_throttle</key>
+    <key>blocks_throttle</key>
     <param>
       <key>id</key>
       <value>gr_throttle_0</value>
@@ -339,7 +339,7 @@
     </param>
   </block>
   <block>
-    <key>gr_add_const_vxx</key>
+    <key>blocks_add_const_vxx</key>
     <param>
       <key>id</key>
       <value>gr_add_const_vxx_0</value>
@@ -370,7 +370,7 @@
     </param>
   </block>
   <block>
-    <key>gr_float_to_int</key>
+    <key>blocks_float_to_int</key>
     <param>
       <key>id</key>
       <value>gr_float_to_int_0</value>
@@ -397,7 +397,7 @@
     </param>
   </block>
   <block>
-    <key>gr_uchar_to_float</key>
+    <key>blocks_uchar_to_float</key>
     <param>
       <key>id</key>
       <value>gr_uchar_to_float_0</value>
@@ -416,7 +416,7 @@
     </param>
   </block>
   <block>
-    <key>blks2_nbfm_rx</key>
+    <key>analog_nbfm_rx</key>
     <param>
       <key>id</key>
       <value>blks2_nbfm_rx_0</value>
@@ -470,7 +470,7 @@
     </param>
   </block>
   <block>
-    <key>blks2_rational_resampler_xxx</key>
+    <key>rational_resampler_xxx</key>
     <param>
       <key>id</key>
       <value>blks2_rational_resampler_xxx_0</value>
@@ -559,7 +559,7 @@
     </param>
   </block>
   <block>
-    <key>gr_message_sink</key>
+    <key>blocks_message_sink</key>
     <param>
       <key>id</key>
       <value>gr_message_sink_0</value>
diff --git a/include/multimon/afsk1200.h b/include/multimon/afsk1200.h
index 03e0370..cee1892 100644
--- a/include/multimon/afsk1200.h
+++ b/include/multimon/afsk1200.h
@@ -22,9 +22,7 @@
  #ifndef INCLUDED_AFSK1200_H
  #define INCLUDED_AFSK1200_H
  
-//#include <gr_hier_block2.h>
-
-#include <gr_block.h>
+#include <gnuradio/block.h>
 extern "C"{
  #include <multimon.h>
 }
@@ -33,7 +31,7 @@ extern "C"{
  
  /*
   * We use boost::shared_ptr's instead of raw pointers for all access
-  * to gr_blocks (and many other data structures).  The shared_ptr gets
+  * to gr::block's (and many other data structures).  The shared_ptr gets
   * us transparent reference counting, which greatly simplifies storage
   * management issues.  This is especially helpful in our hybrid
   * C++ / Python system.
@@ -60,7 +58,7 @@ __GR_ATTR_EXPORT multimon_afsk1200_sptr make_multimon_afsk1200 ();// (const std:
   *
   * \sa howto_square2_ff for a version that subclasses gr_sync_block.
   */
- class multimon_afsk1200 : public gr_block
+ class multimon_afsk1200 : public gr::block
  {
  private:
    // The friend declaration allows howto_make_square_ff to
diff --git a/include/multimon/hdlc.h b/include/multimon/hdlc.h
index 10dfeec..0a36944 100644
--- a/include/multimon/hdlc.h
+++ b/include/multimon/hdlc.h
@@ -24,7 +24,7 @@
  
 //#include <gr_hier_block2.h>
 
-#include <gr_block.h>
+#include <gnuradio/block.h>
 extern "C"{
  #include <multimon.h>
 }
@@ -33,7 +33,7 @@ extern "C"{
  
  /*
   * We use boost::shared_ptr's instead of raw pointers for all access
-  * to gr_blocks (and many other data structures).  The shared_ptr gets
+  * to gr::block's (and many other data structures).  The shared_ptr gets
   * us transparent reference counting, which greatly simplifies storage
   * management issues.  This is especially helpful in our hybrid
   * C++ / Python system.
@@ -60,7 +60,7 @@ __GR_ATTR_EXPORT multimon_hdlc_sptr make_multimon_hdlc ();// (const std::string
   *
   * \sa howto_square2_ff for a version that subclasses gr_sync_block.
   */
- class multimon_hdlc : public gr_block
+ class multimon_hdlc : public gr::block
  {
  private:
    // The friend declaration allows howto_make_square_ff to
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index d2d80b4..df88e45 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -35,8 +35,7 @@ add_library(gnuradio-multimon SHARED
 
 target_link_libraries(gnuradio-multimon
     ${Boost_LIBRARIES}
-    ${GRUEL_LIBRARIES}
-    ${GNURADIO_CORE_LIBRARIES}
+    ${GNURADIO_RUNTIME_LIBRARIES}
 )
 
 set_target_properties(gnuradio-multimon PROPERTIES DEFINE_SYMBOL "gnuradio_multimon_EXPORTS")
diff --git a/lib/afsk1200.cc b/lib/afsk1200.cc
index cfb06b0..4c2d7e7 100644
--- a/lib/afsk1200.cc
+++ b/lib/afsk1200.cc
@@ -34,7 +34,7 @@
 #include <stdio.h>
 #include <stdarg.h>
 #include <afsk1200.h>
-#include <gr_io_signature.h>
+#include <gnuradio/io_signature.h>
 
 /*
  * Create a new instance of multimon_afsk1200 and return
@@ -50,7 +50,7 @@ make_multimon_afsk1200()//(const std::string &args)
 /*
  * Specify constraints on number of input and output streams.
  * This info is used to construct the input and output signatures
- * (2nd & 3rd args to gr_block's constructor).  The input and
+ * (2nd & 3rd args to gr::block's constructor).  The input and
  * output signatures are used by the runtime system to
  * check that a valid number and type of inputs and outputs
  * are connected to this block.  In this case, we accept
@@ -85,9 +85,9 @@ static float corr_space_q[CORRLEN];
  * The private constructor
  */
 multimon_afsk1200::multimon_afsk1200 ()
-  : gr_block ("multimon_afsk1200_demod",
-              gr_make_io_signature (MIN_IN, MAX_IN, sizeof (float)),
-              gr_make_io_signature (MIN_OUT, MAX_OUT, sizeof (char)))
+  : gr::block ("multimon_afsk1200_demod",
+              gr::io_signature::make (MIN_IN, MAX_IN, sizeof (float)),
+              gr::io_signature::make (MIN_OUT, MAX_OUT, sizeof (char)))
 {
    state = (demod_state*) malloc(sizeof(demod_state));
    memset(state, 0, sizeof(*state));
diff --git a/lib/hdlc.cc b/lib/hdlc.cc
index 6ef1607..746fd13 100644
--- a/lib/hdlc.cc
+++ b/lib/hdlc.cc
@@ -24,7 +24,7 @@
 #include "hdlc.h"
 #include <string.h>
 #include <stdio.h>
-#include <gr_io_signature.h>
+#include <gnuradio/io_signature.h>
 
 /* ---------------------------------------------------------------------- */
 
@@ -247,9 +247,9 @@ make_multimon_hdlc()//(const std::string &args)
 }
 
 multimon_hdlc::multimon_hdlc()//struct demod_state *s)
-  : gr_block ("multimon_hldc",
-              gr_make_io_signature (1, 1, sizeof (char)),
-              gr_make_io_signature (1, 1, sizeof (char)))
+  : gr::block ("multimon_hldc",
+              gr::io_signature::make (1, 1, sizeof (char)),
+              gr::io_signature::make (1, 1, sizeof (char)))
 {
    s = (demod_state*) malloc(sizeof(demod_state));
    memset(s, 0, sizeof(*s));
diff --git a/swig/CMakeLists.txt b/swig/CMakeLists.txt
index dce58ea..94981ba 100644
--- a/swig/CMakeLists.txt
+++ b/swig/CMakeLists.txt
@@ -21,7 +21,7 @@
 # Include swig generation macros
 ########################################################################
 find_package(SWIG)
-find_package(PythonLibs)
+find_package(PythonLibs 2)
 if(NOT SWIG_FOUND OR NOT PYTHONLIBS_FOUND)
     return()
 endif()
@@ -31,17 +31,11 @@ include(GrPython)
 ########################################################################
 # Setup swig generation
 ########################################################################
-foreach(incdir ${GNURADIO_CORE_INCLUDE_DIRS})
-    list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/swig)
-endforeach(incdir)
-
-foreach(incdir ${GRUEL_INCLUDE_DIRS})
-    list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/gruel/swig)
+foreach(incdir ${GNURADIO_RUNTIME_INCLUDE_DIRS})
+    list(APPEND GR_SWIG_INCLUDE_DIRS ${incdir}/gnuradio/swig)
 endforeach(incdir)
 
 set(GR_SWIG_LIBRARIES gnuradio-multimon)
-#set(GR_SWIG_DOC_FILE ${CMAKE_CURRENT_BINARY_DIR}/osmosdr_swig_doc.i)
-#set(GR_SWIG_DOC_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/../include)
 
 GR_SWIG_MAKE(multimon_swig multimon_swig.i)
 
@@ -56,6 +50,5 @@ GR_SWIG_INSTALL(TARGETS multimon_swig DESTINATION ${GR_PYTHON_DIR}/multimon)
 install(
     FILES
     multimon_swig.i
-#    ${CMAKE_CURRENT_BINARY_DIR}/osmosdr_swig_doc.i
     DESTINATION ${GR_INCLUDE_DIR}/multimon
 )
diff --git a/swig/multimon_swig.i b/swig/multimon_swig.i
index fb7a5d0..7717642 100644
--- a/swig/multimon_swig.i
+++ b/swig/multimon_swig.i
@@ -2,7 +2,7 @@
 
 %include "std_common.i"                            // the common stuff
 %include "exception.i"
-%import "gnuradio.i"                            // the common stuff
+%include "gnuradio.i"                            // the common stuff
 %{
 #include "gnuradio_swig_bug_workaround.h"       // mandatory bug fix
 #include "afsk1200.h"
@@ -23,7 +23,7 @@ GR_SWIG_BLOCK_MAGIC(multimon, afsk1200);
 
 multimon_afsk1200_sptr make_multimon_afsk1200 ();
 
-class multimon_afsk1200 : public gr_block
+class multimon_afsk1200 : public gr::block
 {
 private:
   multimon_afsk1200 ();
@@ -33,7 +33,7 @@ GR_SWIG_BLOCK_MAGIC(multimon, hdlc);
 
 multimon_hdlc_sptr make_multimon_hdlc ();
 
-class multimon_hdlc : public gr_block
+class multimon_hdlc : public gr::block
 {
 private:
   multimon_hdlc ();